Barnes & Thornburg

What Barnes & Thornburg does

Barnes & Thornburg LLP is a national U.S. law firm formed in 1982 through the merger of Indianapolis-based Barnes, Hickam, Pantzer & Boyd and South Bend-based Thornburg, McGill, Deahl, Harman, Carey & Murray. The firm employs over 850 attorneys across 26 offices in the United States and ranks #78 on the Am Law 100 among the largest U.S. law firms. It serves Fortune 500 companies, large corporations, mid-market firms, startups, entertainment and sports organizations, healthcare systems, and public-sector clients through 50+ practice areas including corporate, litigation, intellectual property, labor and employment, healthcare, real estate, entertainment/media/sports, life sciences, public finance, and white collar defense.

The firm generates revenue through professional service fees — primarily hourly billings for attorney and staff time, with some fixed-fee, contingency, and alternative fee arrangements. Its go-to-market is partner-led enterprise relationship management, materially supplemented by aggressive lateral hiring of established partner groups that bring existing books of business and clients. In 2026 alone the firm added 85+ lawyers through multiple lateral groups. Proprietary technology assets are limited to three client-facing web portals: eRooms (document collaboration), CPI Docket (patent/trademark portfolio management), and an Immigration & Global Mobility Case Management portal — the firm is a legal services business, not a technology company.

The firm is structured as an independent limited liability partnership governed by a Management Committee led by Firm Managing Partner Andrew J. Detherage, with no parent company, no PE backing, and no public listing. A related 501(c)(3), BT Foundation, Inc., handles community giving separately from the operating firm. Recent strategic emphasis is on geographic and practice-area expansion — including new offices in Baltimore, Denver, and Phoenix (February 2026), entry into the Phoenix market via a 35-attorney hire from Ballard Spahr, formal launch of a 50+ lawyer Latin America Practice Group, and notable client wins such as advising Re-Vana Therapeutics on a Boehringer Ingelheim collaboration exceeding $1 billion and resolving a DOJ antitrust suit for OhioHealth.

Name

Barnes & Thornburg

Legal name

Barnes & Thornburg LLP

Website

https://btlaw.com

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Barnes & Thornburg LLP is an Am Law 100 (#78) U.S. law firm with 850+ attorneys across 26 offices, providing corporate, litigation, IP, healthcare, public finance, and specialty legal services to Fortune 500, mid-market, entertainment, and public-sector clients nationwide.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (54111)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI)

akta.pro secondary industries

Personal Injury & Insurance Defense (BPAHAAAM), Family & Private Client (Trusts & Estates) Law (BPAHAAAK)

Keywords

• Legal services
• Corporate law
• Litigation services
• Intellectual property law
• Healthcare legal counsel

Headquarters

HQ city

Indianapolis

HQ country

United States

HQ region

North America

Offices23 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Legal Services - Professional Fees: Barnes & Thornburg generates revenue primarily through billable hours for legal services provided to clients across various practice areas including corporate, litigation, intellectual property, labor and employment, healthcare, real estate, and more. Services are provided to businesses, organizations, and individuals on matters ranging from complex transactions to high-stakes litigation.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

Barnes & Thornburg LLP is a national full-service law firm providing legal counsel and representation to corporations, middle-market businesses, private equity firms, startups, public sector clients, and entertainment/sports clients across more than 50 practice areas. The firm delivers services through 850+ attorneys in 26 U.S. offices, with billable hourly engagements, fixed-fee arrangements, and alternative fee structures negotiated per matter. Core practice groups include Corporate, Litigation, Intellectual Property, Labor and Employment, Healthcare, Real Estate, Insurance Recovery, White Collar Defense, and Entertainment/Media/Sports.

Product overview

Barnes & Thornburg is a national law firm offering a comprehensive suite of legal services organized by practice areas and industry groups. The firm's client-facing digital products include three proprietary web portals: eRooms (document collaboration workspace), CPI Docket (patent and trademark portfolio management), and an Immigration & Global Mobility Case Management portal. The firm serves clients across 26 U.S. offices through practice areas including Corporate, Intellectual Property, Litigation, Labor and Employment, Healthcare, Real Estate, and specialized sectors such as Entertainment, Sports, Energy, Life Sciences, Quantum Technologies, and Artificial Intelligence. The Latin America Practice Group provides cross-border legal services with multilingual and multicultural lawyers from Brazil, Uruguay, Colombia, Mexico, and Puerto Rico.

Differentiator

Problem solved

Functional benefit

Products and services

• Corporate and Transactional Legal Services Full-service corporate counsel including M&A, securities, fund formation, private equity transactions, and capital markets work for corporations, PE firms, and emerging companies.
• Litigation and Dispute Resolution Services Complex commercial litigation, trial work, mass tort and product liability defense, class actions, antitrust, and global disputes for corporations, insurers, and individuals.
• Intellectual Property Legal Services Patent prosecution, patent litigation, trademark counseling and prosecution, IP licensing, trade secrets, and IP portfolio strategy for technology, life sciences, and entertainment clients.
• Labor and Employment Legal Services Employment law counsel for employers including complex employment litigation, workforce policy, discrimination defense, wage and hour, and labor relations matters.
• Healthcare and Life Sciences Legal Services Healthcare regulatory compliance, fraud and abuse prevention, healthcare transactions, payer/provider disputes, and life sciences counseling for healthcare systems, pharmaceutical, biotech, and medical device companies.
• Entertainment, Media and Sports Legal Services Specialized entertainment, media, and sports law including artist representation (Bob Dylan, Tim Burton), music catalog work (Grateful Dead), sports league representation (NFL, NBA), contract negotiation, and brand protection.
• Insurance Recovery and Counseling Legal Services Insurance coverage counsel and insurance recovery representation, including complex coverage disputes, commercial disputes, and toxic torts defense, with practice group expanded to 50 lawyers.
• Real Estate Legal Services Real estate transactions, finance, development, public finance, and infrastructure matters; counseled Western Kentucky University on a multiyear housing transformation initiative financed with over $330 million in tax-exempt and taxable bonds.
• Public Finance and Infrastructure Legal Services Public finance and infrastructure counsel including bond counsel work, government services, transportation, energy, utilities, and infrastructure project financing for public and private entities.
• White Collar, Compliance and Investigations Legal Services White collar criminal defense, complex cross-border regulatory and enforcement matters, international investigations, securities enforcement, and compliance counseling. Named a 2025 Law360 White Collar Practice Group of the Year.
• Latin America Practice Group Legal Services Cross-border Latin America legal services for transactions, litigation, regulatory, and white collar matters, providing multilingual and multicultural lawyers from Brazil, Uruguay, Colombia, Mexico, and Puerto Rico.
• eRooms Client Document Collaboration Portal Web-based workspace enabling clients and their legal teams to share documents and information vital to a legal matter, optimizing collaboration and streamlining decision-making.
• CPI Docket Patent and Trademark Portfolio Management Portal Client portal providing access to patent and trademark dockets, allowing clients to review project status and generate reports of upcoming IP deadlines.
• Immigration and Global Mobility Case Management Client Portal Password-protected client portal enabling clients to manage immigration and global mobility case matters.

Quantifiable outcome

• Successfully represented OhioHealth in resolving DOJ antitrust lawsuit without admitting wrongdoing or paying penalties
• +2 more outcomes

Named customers11 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered minor and core.

• TerraLexminorOthersInternational legal network providing Barnes & Thornburg attorneys with access to global legal resources and cross-border referral relationships with member firms worldwide.
• SCG LegalminorOthersStrategic alliance with regional law firms providing additional coverage and capabilities for clients with geographic needs across different markets.
• BT StrategiesminorGTM or Marketing PartnerMarketing and business development partner supporting firm growth initiatives and client engagement strategies.
• TechpointminorOthersRegional technology and innovation ecosystem partner supporting Indiana-based tech community connections.
• Chicago Quantum ExchangecoreStrategic or Co-development PartnerBarnes & Thornburg collaborated with the Chicago Quantum Exchange to release The Quantum Law Navigator, a two-part report mapping the U.S. legal and regulatory landscape for quantum technology, identifying national security, funding, workforce, and supply chain challenges. The report is a key thought leadership initiative for the firm's Quantum Technologies practice.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Faegre Drinker Biddle & Reath: Faegre Drinker is a national U.S. law firm of comparable scale (~1,300+ attorneys) similarly rooted in the Midwest (Indianapolis/Philadelphia) and serving Fortune 500, life sciences, food & beverage, and financial services clients. Direct mid-market and large-cap competitor with overlapping corporate, litigation, and regulatory practices.
• Thompson Hine: Thompson Hine is a Cleveland-headquartered national business law firm of similar size and Midwest lineage, competing head-to-head with Barnes & Thornburg for corporate, litigation, and regulatory mandates across the Midwest and East Coast. Comparable client mix (mid-market to Fortune 500) and similar industry-focused practice structure make it one of the closest direct peers.
• Frost Brown Todd: Frost Brown Todd is a Cincinnati-based national law firm of comparable scale and Midwest pedigree, with overlapping corporate, litigation, healthcare, and financial services practices. Its geographic footprint and target client base (mid-market to Fortune 500) make it a direct peer, particularly for healthcare and corporate work in Indiana, Ohio, Kentucky, and Tennessee.
• Dinsmore & Shohl: Dinsmore & Shohl is a Cincinnati-based national law firm of similar size (~700+ attorneys) with comparable Midwest roots, serving Fortune 500 and mid-market clients across corporate, litigation, healthcare, and IP. It competes directly with Barnes & Thornburg for Indiana/Kentucky/Ohio enterprise mandates and shares similar industry-led practice structure.
• Quarles & Brady: Quarles & Brady is a Milwaukee/Chicago-headquartered national law firm of comparable scale and Midwest origin, serving similar enterprise clients across healthcare, life sciences, real estate, and corporate practices. Direct peer competing for the same regional enterprise mandates in Wisconsin, Illinois, Indiana, and Arizona.
• Taft Stettinius & Hollister: Taft is a Cincinnati/Indianapolis-based national law firm of comparable size (~600+ attorneys) that competes with Barnes & Thornburg for enterprise clients across the Midwest, with overlapping corporate, litigation, IP, healthcare, and private equity practices. Direct head-to-head peer for Fortune 500 and mid-market mandates in Ohio, Indiana, and Kentucky.
• Tucker Ellis: Tucker Ellis is a Cleveland-based national law firm of comparable size, similarly serving Fortune 500 and mid-market clients across healthcare, life sciences, corporate, IP, and litigation. Direct Midwest-rooted peer with overlapping practice areas and similar client industries, particularly in healthcare and life sciences mandates.

Broad incumbents

• Baker & Hostetler: Baker & Hostetler is a larger, more established national Am Law 100 firm (~1,000+ attorneys) with overlapping corporate, litigation, healthcare, IP, and white collar practices. It competes for the same Fortune 500 mandates as Barnes & Thornburg but at a higher Am Law tier, serving as a broad incumbent benchmark and primary peer from above.
• K&L Gates: K&L Gates is a larger global Am Law firm with strong corporate, IP, litigation, and financial services practices. Comparable to Barnes & Thornburg in IP and financial-services capabilities but significantly larger and more international; competes head-to-head for Fortune 500 mandates where Barnes & Thornburg seeks to expand.

Regional players

• Ice Miller: Ice Miller is an Indianapolis-based law firm that shares Barnes & Thornburg's Indiana headquarters and competes directly for Indiana-based corporate, litigation, public finance, and government services mandates. A clear direct regional peer in the Indianapolis/Midwest market with overlapping Fortune 500, healthcare, and public-sector client base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/BarnesandThornburg
• Facebookfacebook.com/barnesandthornburg
• LinkedInlinkedin.com/company/16972
• Instagraminstagram.com/btlawfirm
• Xx.com/btlawnews

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Barnes & Thornburg